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Sewage sludge discharge method:
1. Depress the clutch of the suction pump and push the PTO control lever to operate the oil pump.
2, open and close the ball valve, discharge part of the sewage, and reduce the pressure inside the suction tank to make it open to the atmosphere.
3. Loosen the suction tank door locking device, loosen the handle and completely remove the screw.
4. Open the tank door opening and closing lever of the manual reversing valve. Before the opening, make sure that the pressure in the suction tank is equal to or greater than the atmospheric pressure. Opening the tank door under negative pressure can damage the tank door seal and the oil. tank.
5. Place the tipping valve of the manual reversing valve of the suction truck in the open position.
6. Recovery operations after sludge discharge: a. Check whether the tank door flange and sealing ring are accompanied with sludge and brush it clean with a brush. b. Place the opening and closing rod of the suction tank door closed, and safely close the door leaf.
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